[src/trunk]: src/sys/uvm Address O->A loan case in comments, pointed out by c...

[riastradh <riastradh%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/3d25947e940b
branches:  trunk
changeset: 336813:3d25947e940b
user:      riastradh <riastradh%NetBSD.org@localhost>
date:      Sat Mar 21 13:28:32 2015 +0000

description:
Address O->A loan case in comments, pointed out by chs@.

diffstat:

 sys/uvm/uvm_page.h |  5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)

diffs (20 lines):

diff -r a609a2643d6b -r 3d25947e940b sys/uvm/uvm_page.h
--- a/sys/uvm/uvm_page.h        Sat Mar 21 13:11:14 2015 +0000
+++ b/sys/uvm/uvm_page.h        Sat Mar 21 13:28:32 2015 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: uvm_page.h,v 1.77 2015/03/21 13:11:14 riastradh Exp $  */
+/*     $NetBSD: uvm_page.h,v 1.78 2015/03/21 13:28:32 riastradh Exp $  */
 
 /*
  * Copyright (c) 1997 Charles D. Cranor and Washington University.
@@ -122,8 +122,9 @@
  * o owned by a uvm_object
  *   => pageq.queue is entry on wired page queue, if any
  *   => listq.queue is entry on list of pages in object
- *   => uanon is NULL
+ *   => uanon is NULL or the vm_anon to which it has been O->A loaned
  *   => uobject is owner
+ *   => iff O->A loaned, PQ_ANON is set in pqflags
  * o owned by a vm_anon
  *   => pageq is unused (XXX correct?)
  *   => listq is unused (XXX correct?)